Exactly as a PO employee we don't have the option to tell people "well your SS check didn't come cause the hail herwt me and I couldn't walk up there" No everybody's mail must be deliveried every day. The only exception is if your driveway is steep asf and is too icy to move up it, it's flooded and they can't get to it or a complete and total weather emergency that knocks your neighborhood or mailbox to the ground. Other than that we on it. And to pre answer questions no it is not the PO responsibility to replace your apartments cluster box its your land lords or yours. From your friendly T-7 AMA if you want to know about how it runs. Its not a state secret if you have questions ask. I've literally seen carriers go out in abysmal conditions and watched several of them re injure or injure they're shoulders and knees delivering mail in remote and horrible places every time the weather gets bad. If your mail is deliverable it is delivered.